Offer Python Latest (nightly master trunk build)

[cooperlees]

One of the features I love most about TravisCI is the ability to build my projects CI with top of Trunk Python (master branch). This allows me to know about deprecations etc. coming very early and have time to work on the fixes sooner.

Can actions look at supporting building a Trunk version nightly? Here is an example usage with Travis: https://github.com/facebookincubator/ptr/blob/master/.travis.yml#L16

Haven't dug in deep, but would also love to have the ability for this build to be able to fail and not flag CI failure, like the Travis config above does.

Thanks.

[hugovk]

cf. https://docs.travis-ci.com/user/languages/python/#nightly-build-support

and https://docs.travis-ci.com/user/languages/python/#development-releases-support

[isidentical]

@madhurig any news?

[cclauss]

I would not call this Python Latest but would instead call it Python Nightly.

[hugovk]

Is this a duplicate of #20?

It has a workaround to use deadsnakes: #20 (comment).

[asottile]

there's now a slightly better workaround using deadsnakes/action

[DeepSpace2]

This should really be offered "natively" by setup-python.

[rouilj]

Agreed, having 3.12-alpha available would be a big win. Especially since xapian fails to build and a
number of other deprecated features like cgi are removed IIRC in 3.12 and they need testing.

[kelson42]

3.12 has been released yesterday

[pquentin]

3.12 has been released yesterday

@kelson42 This is only alpha 6, see https://peps.python.org/pep-0693/ for the full 3.12 release schedule.

[kelson42]

@pquentin ooops. Thx

[aparnajyothi-y]

Hello @cooperlees, Thank you for your suggestion regarding nightly builds for Python versions. While we recognize the value of having the latest updates, providing nightly builds directly from the source code on a daily basis would be challenging. We appreciate your understanding and continued support, will keep you informed of any future developments or alternatives, and encourage you to share any future suggestions.
Please feel free to reach us in case of any concerns/clarifications needed :)

[AraHaan]

For nightly builds could have the action run git clone https://github.com/python/cpython.git --branch main and then run the required steps to build cpython from source before using it like normal. I do something similar to this locally.

[aparnajyothi-y]

Hello @cooperlees, Please let us know incase of any concerns/clarifications on the above.

[cooperlees]

Thanks for reaching out. Have you considered using something like DeadSnakes on your ubuntu containers?

• https://github.com/deadsnakes

They provide nightly builds.

[cclauss]

Also to consider:

• Confused about how to use without a virtualenv astral-sh/setup-uv#124